[logback-dev] svn commit: r1731 - logback/trunk/logback-classic/src/test/java/ch/qos/logback/classic/util
noreply.ceki at qos.ch
noreply.ceki at qos.ch
Mon Aug 4 23:23:37 CEST 2008
Author: ceki
Date: Mon Aug 4 23:23:37 2008
New Revision: 1731
Modified:
logback/trunk/logback-classic/src/test/java/ch/qos/logback/classic/util/BogoPerf.java
Log:
BogoPerf outputs data for debugging purposes
Modified: logback/trunk/logback-classic/src/test/java/ch/qos/logback/classic/util/BogoPerf.java
==============================================================================
--- logback/trunk/logback-classic/src/test/java/ch/qos/logback/classic/util/BogoPerf.java (original)
+++ logback/trunk/logback-classic/src/test/java/ch/qos/logback/classic/util/BogoPerf.java Mon Aug 4 23:23:37 2008
@@ -15,17 +15,17 @@
private static int SLACK = 2;
static {
- System.out.println("Host runs at "+INITIAL_BOGO_IPS + " BIPS");
+ System.out.println("Host runs at " + INITIAL_BOGO_IPS + " BIPS");
}
-
+
/**
* Compute bogoInstructions per second
* <p>
* on a 3.2 Ghz Pentium D CPU (around 2007), we obtain about 10'000 bogoIPS.
*
* @param N
- * number of bogoInstructions to average over in order to
- * compute the result
+ * number of bogoInstructions to average over in order to compute the
+ * result
* @return bogo Instructions Per Second
*/
private static double computeBogoIPS(int N) {
@@ -70,8 +70,8 @@
}
/**
- * Assertion used for values that <b>decrease</b> with faster CPUs,
- * typically the time (duration) needed to perform a task.
+ * Assertion used for values that <b>decrease</b> with faster CPUs, typically
+ * the time (duration) needed to perform a task.
*
* @param currentDuration
* @param referenceDuraion
@@ -79,17 +79,28 @@
* @throws AssertionFailedError
*/
public static void assertDuration(double currentDuration,
- long referenceDuraion, double referenceBIPS)
- throws AssertionFailedError {
+ long referenceDuraion, double referenceBIPS) throws AssertionFailedError {
double ajustedDuration = adjustExpectedDuration(referenceDuraion,
referenceBIPS);
+
if (currentDuration > ajustedDuration * SLACK) {
throw new AssertionFailedError(currentDuration + " exceeded expected "
+ ajustedDuration + " (adjusted), " + referenceDuraion + " (raw)");
}
}
+
+ private static double adjustExpectedDuration(long referenceDuration,
+ double referenceBIPS) {
+ double currentBIPS = currentBIPS();
+ double adjusted = referenceDuration * (referenceBIPS / currentBIPS);
+ System.out.println("currentBIPS=" + currentBIPS + ", referenceBIPS="
+ + referenceBIPS + ", adjustedDur=" + adjusted + ", referenceDur="
+ + referenceDuration);
+ return adjusted;
+ }
+
/**
- * Assertion used for values that <b>increase<b> with faster CPUs, typically
+ * Assertion used for values that <b>increase<b> with faster CPUs, typically
* the number of operations accomplished per unit of time.
*
* @param currentPerformance
@@ -102,21 +113,16 @@
throws AssertionFailedError {
double ajustedPerf = adjustExpectedPerformance(referencePerformance,
referenceBIPS);
- if (currentPerformance*SLACK < ajustedPerf) {
+ if (currentPerformance * SLACK < ajustedPerf) {
throw new AssertionFailedError(currentPerformance + " below expected "
+ ajustedPerf + " (adjusted), " + referencePerformance + " (raw)");
}
}
-
+
private static double adjustExpectedPerformance(long referenceDuration,
double referenceBIPS) {
double currentBIPS = currentBIPS();
- return referenceDuration * (currentBIPS/referenceBIPS);
- }
-
- private static double adjustExpectedDuration(long referenceDuration,
- double referenceBIPS) {
- double currentBIPS = currentBIPS();
- return referenceDuration * (referenceBIPS / currentBIPS);
+ return referenceDuration * (currentBIPS / referenceBIPS);
}
+
}
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